Don Valley East is a provincial electoral district in Toronto, Ontario, Canada. It elects one member to the Legislative Assembly of Ontario. It was created in 1999 from parts of Don Mills, York Mills, Oriole and Willowdale. In 2007, the boundaries were altered slightly. In the northwest, the boundary was changed from the Don River to Leslie Street, and in the south they changed from the North York/East York border to Sunrise Avenue.